This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A158807 #5 Mar 17 2014 04:14:23
%S A158807 1,-7,11,28,-1547,-980,133691,81172,-10955627,-11878244,4448226055,
%T A158807 2674671076,-49823872362737,-855605816468,40888881655517,
%U A158807 368601472639540,-1711418530905680779,-205700802920736452,1681258656184674505817,144338957346266943364
%N A158807 Numerator of Bernoulli(n, 1/9).
%H A158807 Vincenzo Librandi, <a href="/A158807/b158807.txt">Table of n, a(n) for n = 0..250</a>
%t A158807 Table[Numerator[BernoulliB[n, 1/9]], {n, 0, 50}] (* _Vincenzo Librandi_, Mar 17 2014 *)
%Y A158807 For denominators see A158808.
%K A158807 sign,frac
%O A158807 0,2
%A A158807 _N. J. A. Sloane_, Nov 08 2009